coredump_filter: add description of bit 4
authorHidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Sat, 13 Sep 2008 09:33:10 +0000 (02:33 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 13 Sep 2008 21:41:51 +0000 (14:41 -0700)
There is no description of bit 4 of coredump_filter in the
documentation.  This patch adds it.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/filesystems/proc.txt

index 394eb2c..f566ad9 100644 (file)
@@ -2413,6 +2413,8 @@ The following 4 memory types are supported:
   - (bit 1) anonymous shared memory
   - (bit 2) file-backed private memory
   - (bit 3) file-backed shared memory
+  - (bit 4) ELF header pages in file-backed private memory areas (it is
+            effective only if the bit 2 is cleared)
 
   Note that MMIO pages such as frame buffer are never dumped and vDSO pages
   are always dumped regardless of the bitmask status.